Roto Grip Magic Gem Bowling Ball

The Magic Gem is built for experienced bowlers who want strong hook potential on medium to heavy oil lane conditions. It uses a reactive resin coverstock, which responds to how the ball is thrown, so bowlers with some rev rate and lane play experience will get the most out of it. Beginners may find it harder to control compared to a plastic or urethane option.

An asymmetrical core means the weight inside the ball is unevenly distributed in more than one direction, which creates a more dynamic, angular motion down the lane. Think of it as the engine that makes the ball want to hook more aggressively as it travels toward the pins. Balls with this type of core are generally favored by higher-level bowlers looking for stronger backend reaction.

A hybrid reactive coverstock blends solid and pearl reactive materials. The solid portion helps the ball grip the lane earlier in the oil, while the pearl component keeps it cleaner through the front and gives it a sharper move on the backend. The result is a versatile motion that works well in medium to heavy oil conditions without being too snappy or too smooth.

This ball ships with a 2000-grit Abralon finish, which is a moderately polished surface. Lower grit numbers create a rougher surface that grips the lane sooner, while higher numbers make the ball slide more before hooking. A 2000-grit finish strikes a balance, giving the ball good traction through the oil while still generating a strong move at the breakpoint.

Yes. Like most performance bowling balls, the Magic Gem is sold undrilled. You will need to have it drilled by a pro shop to fit your hand before throwing it. A pro shop professional can help you find the right fit based on your hand size, grip style, and how you throw the ball.